[natrona111]

After I received the update to Android 2.1, my Google calendar was not syncing with my phone anymore, and I kept receiving the "force close" message for com.htc.bgp and com.htc.calendar.

I went to Settings >> Applications >> Manage applications and selected "Clear cache" and "Clear data" for (where applicable):

- Calendar
- Calendar Storage
- Gmail
- Gmail Storage

Now my calendar seems to be working fine and syncing properly with Google!

Hope this helps someone out there...

[gingersnap]

Thank you natrona111!!! You are a Droid genius, and a modest one at that! I did exactly as you said, and there were my events on my calendar widget once again )) Over the last 24 hours I read dozens of useless user comments about the Google calendar not syncing. None of them offered a simple solution to this problem. I'm so lucky & glad I found your post. Out of curiosity, why does clearing the data/cache make the sync work?

[tada1096]

great advice, fixed all the problems i have having

[roy.blake]

I had the same problem on an HTC Hero. Your advice fixed that one too. Thanks!

[sexygyrl]

Came across this in a google search. It's not working for me. I think I have jacked up the phone even worse!! I have even tried factory reset and attempting to sync before I put ANYthing (even email info) back in. EVO on Froyo

[cdf3]

I'm also receiving the "com.htc.bgp error" message. I cleared the cached as stated from the post above. My calendar is no longer slow. I was having issues with my calendar taking 5 seconds to load and open events. It's working fine now.
I'm keeping my fingers crossed, hoping that the problem had been resolved.

[Cait Steinberg]

What about HTC minis?